Fig. 1. Structural diagram of quintuple frequency-tunable and phase-tunable OEO

Fig. 2. Spectral processing of SBS effect in HNLF. (a) Spectrum of Brillouin gain-loss compensation; (b) spectrum before TBPF;(c) spectrum before PD3

Fig. 3. Structural diagram of DPMZM

Fig. 4. Experimental spectra. (a) Spectra of two SBS effects measured by experiment; (b) optical spectrum before PD1

Fig. 5. Optical spectra of generated five pump lights measured by experiment

Fig. 6. Simulated output electrical frequency spectrum of OEO when TLS wavelength is 1550 nm

Fig. 7. Output phase tunable simulation diagram。(a) 0°(360°); (b) 90°; (c) 180°; (d) 270°

Fig. 8. Simulated output microwave signal of OEO when wavelength of TLS is tuned from 1510 nm to 1620 nm

Fig. 9. Simulated phase noise of proposed OEO when wavelength of TLS is set at 1550 nm